Papers presented at the third Meeting on Soil Fertility and Fertilizer Use in Africa, Addis Ababa, Ethiopia, 2-7 Nov 1970
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1970
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| Subjects: | AGL SFFU, FERTILIZERS, SOIL FERTILITY, TRIAL METHODS, EXTENSION ACTIVITIES, CROPS, PLANT RESPONSE, NITROGEN, POTASSIUM, PHOSPHORUS, SULPHUR, SOIL TYPES, COST BENEFIT ANALYSIS, YIELDS, RESEARCH, PLANNING, ENGRAIS, FERTILITE DU SOL, ABONOS, FERTILIDAD DEL SUELO, METHODE D'ESSAI, VULGARISATION, PLANTE DE CULTURE, REPONSE DE LA PLANTE, AZOTE, PHOSPHORE, SOUFRE, TYPE DE SOL, ANALYSE COUT AVANTAGE, RENDEMENT, RECHERCHE, PLANIFICATION, METODOS DE ENSAYO, EXTENSION, CULTIVOS, RESPUESTA DE LA PLANTA, NITROGENO, POTASIO, FOSFORO, AZUFRE, TIPOS DE SUELOS, ANALISIS DE COSTOS Y BENEFICIOS, RENDIMIENTO, INVESTIGACION, PLANIFICACION, |
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